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1.发明申请公开(公告)号：US20230094992A1
公开(公告)日：2023-03-30
申请号：US18076229
申请日：2022-12-06
Inventor： Chuanming ZHANG , Min LIU , Zhi WANG , Hailu JIA
IPC: G01S5/02
Abstract: A method for generating a wireless signal fingerprint database includes: obtaining an initial atmospheric pressure value, in which the initial atmospheric pressure value is an atmospheric pressure value collected when a terminal enters indoors; obtaining periodically a current wireless signal fingerprint and a current atmospheric pressure value collected by the terminal; and determining a floor corresponding to the current wireless signal fingerprint based on the initial atmospheric pressure value and the current atmospheric pressure value, to obtain the wireless signal fingerprint database.
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公开(公告)号：US20220027705A1
公开(公告)日：2022-01-27
申请号：US17494497
申请日：2021-10-05
Abstract: A building positioning method, an electronic device, a storage medium and a terminal device are disclosed, which relate to the technical fields of artificial intelligence, computer vision domains and intelligent traffic. The method includes: acquiring a building fingerprint library, the building fingerprint library including a plurality of groups of triplet data and a plurality of corresponding building information, wherein a single group of triplet data includes surveying and mapping data, GPS data and Wi-Fi data; receiving a positioning request, the positioning request including first triplet data, the first triplet data including first surveying and mapping data, first GPS data, and first Wi-Fi data; calculating a similarity between the first triplet data and the plurality of groups of triplet data in the building fingerprint library, respectively; and determining building information corresponding to the positioning request according to the calculated similarity.
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